scpi: Fix incorrect serial_read_nonblocking call().

There was a problem in scpi_serial.c in the scpi_serial_read_data()
function. Incoming data was written at the read position in the buffer,
although it should be written at the count position in the buffer.

diff --git a/src/scpi/scpi_serial.c b/src/scpi/scpi_serial.c
index 9522c29702305948e2d90c0cbba0c2101253108c..cad41381595fb5f4739c88a9d6e7428adcfcc759 100644 (file)
--- a/src/scpi/scpi_serial.c
+++ b/src/scpi/scpi_serial.c
@@ -162,7 +162,7 @@ static int scpi_serial_read_data(void *priv, char *buf, int maxlen)
 
        /* Try to read new data into the buffer if there is space. */
        if (len > 0) {
-               ret = serial_read_nonblocking(sscpi->serial, sscpi->buffer + sscpi->read,
+               ret = serial_read_nonblocking(sscpi->serial, sscpi->buffer + sscpi->count,
                                BUFFER_SIZE - sscpi->count);
 
                if (ret < 0)